Home / 77,691,420.16-107,214,165.12-42,884,118.88

Finding the Fourth Proportional to 77,691,420.16, 107,214,165.12 and 42,884,118.88

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Solution

The fourth proportional to 77,691,420.16, 107,214,165.12 and 42,884,118.88 is: 59,180,086.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691,420.16 : 107,214,165.12 = 42,884,118.88 : x
  2. Step 2: Convert to fraction form
    77,691,420.16/107,214,165.12 = 42,884,118.88/x
  3. Step 3: Cross multiply
    77,691,420.16x = 107,214,165.12 × 42,884,118.88
  4. Step 4: Simplify right side
    77,691,420.16x = 4,597,785,002,626,030
  5. Step 5: Solve for x
    x = 4,597,785,002,626,030/77,691,420.16
  6. Step 6: Final answer
    x = 59,180,086.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.